chemical ship化学品船chemicaladj.化学的n.药品；化学物chemical industrial waste slag化工废渣chemical composition of spring泉水化学成分chemically precipitated sludge化学沉淀污泥chemical diffusion coefficient扩散系数chemical colorimetric analysis化学比色法chemical engineering principle化工原理chemical equipment manufacture化工设备制造chemical steam-water quality化学汽水品质Chemical oxygen-iodine laser氧碘化学激光chemical constructive projects化工建设项目

1. Chemical weathering was beginning to attack the unweathered bedrock.
   化学侵蚀作用开始攻击还未侵蚀的岩床。
2. The wall must be protected against chemical attack from highly corrosive components of the combusting gases.
   必须把室壁保护起来以防止来自燃气的高度腐蚀性成分的化学侵蚀。